Astronomy

Who came up with the heliocentric model?

• Tycho Brahe

• Galileo Galilei

• Johannes Kepler

• Nicolaus Copernicus

What are the inner planets in order from the sun?

• Mars,Neptune,Earth,Jupiter,Mercury,Venus

• Mercury,Venus,Earth,Mars

• Jupiter,Saturn,Mars,Mercury

• Mercury,Mars,Venus,Earth

What are the outer planets in order from the sun?

• Jupiter,Saturn,Earth,Neptune,Pluto

• Jupiter,Neptune,Mars,Venus

• Jupiter,Saturn,Uranus,Neptune

• Pluto,Mars,Jupiter,Neptune

How far is Earth from the sun?(rounded)

• 90,0000 miles

• 200,000 miles

• 93,000 miles

• 91,000 miles

How many planets have no moons?

• 2

• 3

• 7

• 1

Kepler said the planets orbited in

• ellipses

• circular paths

• they don't orbit at all

How many planets are there?

• 9

• 3

• 8

• 10

How do planets keep there orbit?

• Gravity and Density

• Gravity and Inertia

What planet has over 1000 rings?

• Jupiter

• Saturn

• Mars

• Venus

Which model of the solar system is earth centered?

• Geocentric

• Heliocentric